Watch for the blind



(No Model.)

S. F. ADAM.

WATCH FOR THE BLIND. No. 360,641. Patented Apr. 5, 1887.

WITNESSES: I/ILIVENTOR:

BY JAM L6 2 ATTORNEYS.

N. PETER; Pbolo-UIMIW. Wanhiuloa. 0.;

UNITED STATES PATENT OFFICEQ SAMUEL F. ADAM, OF MIDDLETOVN, CONNECTICUT.

WATCH FOR THE BLIND.

SPECIFICATION forming part of Letters Patent No. 360,641, dated April 5,1887.

Application filed July 10, 1886, Serial No. 207,660. (No model.)

To all whom it may concern:

Be it known that I, SAMUEL FORBES ADAM, of Middletown, in the county ofMiddlesex and State of Connecticut, have invented new and usefulImprovementsin atches, of which the following is a full, clear, andexact description.

My invention relates to the construction of the face and hands of awatch to enable the time to be told in the dark or by the blind; and theinvention-consists of the construction and combination of parts, ashereinafter described and claimed.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar letters of reference indicatecorresponding parts in both the figures.

Figure 1 is a plan View of a watch having my invention applied thereto,and Fig. 2 is a sectional elevation of the same, showing the coverclosed.

The works of the watch are covered below the hands a b by the plate A,on which in this instance is formed the small dial 0. The hands a I) areeach formed with a knob or projection,

d, and over the hands is placed the concave disk B, composed of severalconcentric annular rings, 6 e, spaced to form the annular slots f f, inwhich the upwardly-projecting points or knobs d of the hands move, sothat they can be felt by the finger through the slotsand their relativeposition on the dial determined by the sense of touch. The annularplates 0 are united by the radial ribs 9 9, (four in nu mber,) which areformed with the upwardlycurved bridge-pieces g, to span the annularslots f, and not interfere with the movement of the hands a b. Upon theouter surfaces of the annular plates 0 are formed, between the ribs 9,the ribs 71, all of which, together with 40 the ribs 9, make twelve innumber, and they are arranged equidistant apart, so they stand for thehour and five-minute marks upon the dial. The face of the watch may beclosed by a cover or cap, C, in which in this instance is fitted a smallcrystal, C, through which the dial 0 may be observed without opening thewatch.

In use, to ascertain the time by the sense of feeling, the fingers willbe moved around the slots f to find the points (1, when their localitywith reference to each other and to thetwelve side of the dial will beascertained by counting the ribs y 71 which can be easily done, so thatwith a little practice thehourand minute can be quite accurately told bythis watch in the dark or by a blind person.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

l. A watch-face formed with annular slots, substantially as and for thepurposes set forth.

2. The combination. with a watclrface having annular slots, of the handsof the watch SAMUEL F. ADAM.

\Vituesses:

FREDERIO VINAL, GEORGE A. HUNT.

